<script setup>
	import '@wangeditor/editor/dist/css/style.css' // 引入 css
	
	import {onBeforeUnmount, ref, shallowRef, onMounted, watch} from 'vue'
	import {Editor, Toolbar} from '@wangeditor/editor-for-vue'
	import {ElMessage} from "element-plus";
	
	// 编辑器实例，必须用 shallowRef
	const editorRef = shallowRef()
	
	// 内容 HTML
	const valueHtml = ref('<p></p>')
	//初始值，定义一个属性接收父组件传来的值。用于做数据回显功能
	const props = defineProps({
		initValue: {
			type: String,
			default: ''
		}
	})
	//主要用于父组件接收wangeditor实时编辑的内容
	const emit = defineEmits(['getEditorContent'])
	
	//监听父组件传递过来值的变化，用于回显
	watch(() => props.initValue, value => {
		// console.log(value)
		valueHtml.value = value ?? ''
	})
	
	//监听富文本编辑器内容变化，通知父组件得到数据
	watch(valueHtml, (content) => {
		emit('getEditorContent', content)
	})
	
	const toolbarConfig = {}
	//图片上传
	import {useTokenStore} from '@/store/token.js'
	
	const tokenStore = useTokenStore();
	const editorConfig = {
		placeholder: '请输入内容...',
		MENU_CONF: {
			uploadImage: {
				fieldName: 'file',
				server: '/api/upload',
				// 自定义增加 http  header
				headers: {
					Authorization: tokenStore.token,
				},
				customInsert(res, insertFn) {
					// res 即服务端的返回结果
					console.log(res)
					// 从 res 中找到 url alt href ，然后插入图片
					if (res.code == 0) {
						insertFn(res.data)
					} else {
						ElMessage.error('插入图片异常')
					}
				},
			}
		}
	}
	
	// 组件销毁时，也及时销毁编辑器
	onBeforeUnmount(() => {
		const editor = editorRef.value
		if (editor == null) return
		editor.destroy()
	})
	
	const handleCreated = (editor) => {
		editorRef.value = editor // 记录 editor 实例，重要！
	}
</script>

<template>
	<div style="border: 1px solid #ccc">
		<Toolbar
			style="border-bottom: 1px solid #ccc"
			:editor="editorRef"
			:defaultConfig="toolbarConfig"
		/>
		<Editor
			style="height: 500px; overflow-y: hidden;"
			v-model="valueHtml"
			:defaultConfig="editorConfig"
			@onCreated="handleCreated"
		/>
	</div>
</template>

<style scoped>

</style>